In OTL, only George Clinton and John Calhoun were vice-presidents of the US under two different presidents. Can anyone think of other possibilities, either before or after 1900?
I can think of a few, all post-1900:
(1) Most obviously, Charles Fairbanks, https://en.wikipedia.org/wiki/Charles_W._Fairbanks if Hughes had just done a little better in California in 1916.
(2) Eisenhower-Truman in 1948?! https://www.alternatehistory.com/forum/threads/eisenhower-truman-democratic-ticket-in-1948.299036/
(3) McGovern-Humphrey in 1972? At Miami Beach, McGovern made a pro forma offer of the vice-presidential nomination to Humphrey, who, as expected, refused. But after the Eagleton fiasco, there was apparently a serious attempt to get Humphrey on the ticket, which Warren Beatty tried to broker... https://books.google.com/books?id=buw21mxhGp8C&pg=PT225 Of course, even if the attempt had succeeded, the odds against McGovern-Humphrey winning were pretty formidable.
(4) Nelson Rockefeller under both Gerald Ford and Ronald Reagan (assuming the Reagan-Rockefeller ticket won in 1976). To quote an old post of mine:
***
But [John] Sears' real first choice is shocking--Nelson Rockefeller! When asked what the reaction of Helms and other conservatives would be, Sears replied "They would have come off the ceiling in a day or two." Sears added, "I thought very strongly that he [Rockefeller] would have liked the irony of it, and he had firm control of his delegates. And, Mrs. Reagan liked him a lot. But you couldn't trust that others wouldn't talk him out of it, and you couldn't take that chance."
"Although Rockefeller controlled Dick Rosenbaum and Rosenbaum controlled the vast majority of the New York delegation, it is unknown whether delegates would have gone along with them and supported Reagan had Rockefeller joined the ticket. Still, it was no secret that Rockefeller and Rosenbaum were angry and dismayed over the treatment afforded Rockefeller by Ford and the President Ford Committee. The question is whether Reagan could hold his conservative delegates in the face of such a selection..." https://books.google.com/books?id=fPWPDH-0TZYC&pg=PA273
(If the problem was not knowing whether Rocky would accept, one would think that the Reagan camp could have sent a trusted go-between to at least sound Rocky out about it. And after all, given that Ford was not going to keep him on the ticket, this is probably Rocky's only chance not to have his political career ended. How likely is it that he would be talked out of that?)
Also, on foreign policy, Rocky might not be that distant from Reagan. "[Stu] Spencer, in a 2000 interview with the author, also described Rockefeller as 'the toughest anti-Communist I ever saw. Much more than Reagan, much more than Barry. I said to him, 'Why?' He said, 'If you were a Rockefeller, wouldn't you be?'" https://books.google.com/books?id=yjuOAwAAQBAJ&pg=PT649
That being said, while Rockefeller was not as hated by conservatives in 1976 as he was in 1964, Sears' thinking that Helms, etc. "would have come off the ceiling in a day or two" may have been too optimistic.
https://www.alternatehistory.com/forum/threads/reagan-wins-nomination-in-1976-who’s-his-vp-and-can-he-win-the-election.448937/#post-17396476
(5) Reagan-Ford in 1980 (the deadly term "co-presidency" never comes up, and Ford is satisfied with the routine reassurances "of course you'll have a substantive role" and "of course you'll be consulted").
(6) Obama-Gore in 2008? "Buzz swirled around a possible Obama-Gore ticket last month after the former vice president - who remains a very popular figure in the Democratic Party - gave an enthusiastic endorsement of the Illinois senator after months on sidelines during the prolonged Democratic primary." http://politicalticker.blogs.cnn.com/2008/07/18/no-obama-gore-ticket/ but Gore made it clear that eight years as VP were enough for him...
Any other ideas?
I can think of a few, all post-1900:
(1) Most obviously, Charles Fairbanks, https://en.wikipedia.org/wiki/Charles_W._Fairbanks if Hughes had just done a little better in California in 1916.
(2) Eisenhower-Truman in 1948?! https://www.alternatehistory.com/forum/threads/eisenhower-truman-democratic-ticket-in-1948.299036/
(3) McGovern-Humphrey in 1972? At Miami Beach, McGovern made a pro forma offer of the vice-presidential nomination to Humphrey, who, as expected, refused. But after the Eagleton fiasco, there was apparently a serious attempt to get Humphrey on the ticket, which Warren Beatty tried to broker... https://books.google.com/books?id=buw21mxhGp8C&pg=PT225 Of course, even if the attempt had succeeded, the odds against McGovern-Humphrey winning were pretty formidable.
(4) Nelson Rockefeller under both Gerald Ford and Ronald Reagan (assuming the Reagan-Rockefeller ticket won in 1976). To quote an old post of mine:
***
But [John] Sears' real first choice is shocking--Nelson Rockefeller! When asked what the reaction of Helms and other conservatives would be, Sears replied "They would have come off the ceiling in a day or two." Sears added, "I thought very strongly that he [Rockefeller] would have liked the irony of it, and he had firm control of his delegates. And, Mrs. Reagan liked him a lot. But you couldn't trust that others wouldn't talk him out of it, and you couldn't take that chance."
"Although Rockefeller controlled Dick Rosenbaum and Rosenbaum controlled the vast majority of the New York delegation, it is unknown whether delegates would have gone along with them and supported Reagan had Rockefeller joined the ticket. Still, it was no secret that Rockefeller and Rosenbaum were angry and dismayed over the treatment afforded Rockefeller by Ford and the President Ford Committee. The question is whether Reagan could hold his conservative delegates in the face of such a selection..." https://books.google.com/books?id=fPWPDH-0TZYC&pg=PA273
(If the problem was not knowing whether Rocky would accept, one would think that the Reagan camp could have sent a trusted go-between to at least sound Rocky out about it. And after all, given that Ford was not going to keep him on the ticket, this is probably Rocky's only chance not to have his political career ended. How likely is it that he would be talked out of that?)
Also, on foreign policy, Rocky might not be that distant from Reagan. "[Stu] Spencer, in a 2000 interview with the author, also described Rockefeller as 'the toughest anti-Communist I ever saw. Much more than Reagan, much more than Barry. I said to him, 'Why?' He said, 'If you were a Rockefeller, wouldn't you be?'" https://books.google.com/books?id=yjuOAwAAQBAJ&pg=PT649
That being said, while Rockefeller was not as hated by conservatives in 1976 as he was in 1964, Sears' thinking that Helms, etc. "would have come off the ceiling in a day or two" may have been too optimistic.
https://www.alternatehistory.com/forum/threads/reagan-wins-nomination-in-1976-who’s-his-vp-and-can-he-win-the-election.448937/#post-17396476
(5) Reagan-Ford in 1980 (the deadly term "co-presidency" never comes up, and Ford is satisfied with the routine reassurances "of course you'll have a substantive role" and "of course you'll be consulted").
(6) Obama-Gore in 2008? "Buzz swirled around a possible Obama-Gore ticket last month after the former vice president - who remains a very popular figure in the Democratic Party - gave an enthusiastic endorsement of the Illinois senator after months on sidelines during the prolonged Democratic primary." http://politicalticker.blogs.cnn.com/2008/07/18/no-obama-gore-ticket/ but Gore made it clear that eight years as VP were enough for him...
Any other ideas?